The book "Programming: Section. Programming in PL/1" by E. In. Sigitova and S. In. Emelyanova is an indispensable guide for those who seek to master the basics and intricacies of one of the classical programming languages, widely used in educational institutions and industry. This book is not just a textbook, but a real immersion in the world of programming, which reveals all the facets of the PL language, making it understandable and accessible even to beginners, as well as useful for those who want to deepen their knowledge. What is hidden behind the pages of this book? The focus is on the programming language PL/1, which is famous for its power, versatility and historical significance. The authors masterfully reveal its syntax, structure and principles of work, helping the reader to understand how to create effective programs, solve complex problems and automate processes. Particular attention is paid to practical aspects - from writing the first lines of code to developing complex algorithms, which makes the book a valuable resource for students, software engineers and specialists in the field of information technology. The book "Programming: Section. Programming in PL/1" is suitable for a wide audience. It will be of interest to students of technical specialties, teachers, as well as professionals who want to refresh their knowledge or get acquainted with the history and modern capabilities of the PL/1. At the age of 16 years and older, readers who are passionate about programming and information technology will find in this book answers to their questions and new ideas for implementing their own projects. It is especially valuable for those who appreciate a systematic approach to learning and want to understand how the internal mechanisms of software systems work. The topics raised in the book cover a wide range from basic syntax and semantics of language to methods of structural and procedural programming. The authors are not limited to theory, but demonstrate practical examples, algorithms and tasks, which makes reading not only informative, but also fascinating. The book discusses in detail the issues of data processing, automation of calculations, the organization of information storage and the construction of program logic. This approach allows the reader not just to remember the syntax, but to understand how to use the PL language/1 to solve real problems in the field of automation and information systems. Style of presentation in E. In. Sigitova and S. In. Emelyanova is distinguished by clarity, logic and accessibility, which makes the book especially attractive for beginners. The authors are able to explain complex concepts in simple words, making learning interesting and motivating. In their other well-known works, there is a special concern about the quality of the material and focus on the practical application of knowledge, which makes their books popular among students and teachers. If you are looking for a book that will help you understand the programming language PL/1 from scratch or deepen your existing knowledge, "Programming: Section. Programming in PL/1" is exactly what you need. It will become a reliable satellite in the programming world, open new horizons and help you feel confident in the field of automation and software solutions development. This book is a great investment in your professional development and a great opportunity to get acquainted with one of the key programming languages that have left a noticeable mark in the history of information technology.